a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb. arm, branch, limb (noun). any projection that is thought to resemble a human arm.
Vertebrate are the animals belonging to the sub-phylum Vertebrata. They belong to the Phylum Chordata. The characteristics of phylum chordata is the presence of notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits. The members of subphylum Vertebrata possess notochord during the embryonic period.hey belong to the Phylum Chordata. The characteristics of phylum chordata is the presence of notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits. The members of subphylum Vertebrata possess notochord during the embryonic period.
All vertebrate animals, including humans, have a backbone and an internal skeleton. Our skeleton helps to give us our shape, helps us move, and protects soft body parts. While skeleton shape and structure vary greatly from animal to animal, all vertebrates have a skeleton.Invertebrates do not have vertebrae in them. Some, like lobsters or dragonflies, have an exoskeleton, a hard covering that functions similarly to the skeleton of a vertebrate.Some are shelled, like snails and oysters.ll vertebrate animals, including humans, have a backbone and an internal skeleton. Our skeleton helps to give us our shape, helps us move, and protects soft body parts. While skeleton shape and structure vary greatly from animal to animal, all vertebrates have a skeleton.